source: https://www.w3.org/2021/06/musicxml40/musicxml-reference/elements/capo/
MusicXML 4.0 >
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capo
Parent element:
<staff-details>
The element indicates at which fret a capo should be placed on a fretted instrument. This changes the open tuning of the strings specified by the element by the specified number of half-steps.
nonNegativeInteger
None.
This element is used in the following examples: